Pete slides a crate up a ramp with constant speed at an angle of 30 degrees by exerting a 242 N force parallel to the ramp.

Pete slides a crate up a ramp with constant speed at an angle of 30 degrees by exerting a 242 N force parallel to the ramp. How much waork has been done against gravity when the crate is raised a vertical distance of 2.19 m? The coefficient of friction is 0.316.